reaction of alkyl aryl N-p-tosylsulphilimines with thiophenolate ion was found to afford quantitatively the sulphide that arises by an SN2 like reaction on the carbon atom adjacent to the tri-valent sulphur atom. This reaction was also found to proceed smoothly with such compounds as sulphoxides and sulphones and sulphoxmanes. The kinetic study on the reaction between arylmethyl N-p-tosylsulphilimine
发现烷基芳基N-对甲苯磺酰基亚胺与硫酚盐离子的反应定量地提供了由类似于S N 2的反应在邻近三价硫原子的碳原子上产生的硫化物。还发现该反应在诸如亚砜,砜和亚砜基的化合物中可顺利进行。在DMF中对芳基甲基N-对甲苯磺酰亚氨基亚胺与硫酚酸根离子之间反应的动力学研究表明,该反应是二级的,即对于每个硫酚酸根离子和亚硫亚胺而言是一级的。反应的活化焓和熵为ΔH ≠ = -17·kcal / mol和ΔS ≠分别等于-5·7 eu。取代基在反应中的作用-p -XC 6 H 4 +(- SO 2 C 6 H 4 Y- p)CH 3 + p -ZC 6 H 4 SK与Hammettσ值很好相关,得到ϱ x = + 2 ·4,y = + 1·2,z = -1·8。同时,观察到烷基苯基N-对甲苯磺酰亚胺基亚胺中的大体积烷基显着的空间延迟。此外,根据使用旋光秒的反应的立体化学研究-辛基苯基N-对甲苯磺酰亚胺与硫酚
A convenient preparation of N- (arenesulfonyl) sulfoximines by oxidation of N- (arenesulfonyl) sulfilimines with sodium hypochlorite in a two phase system
N-(Arenesulfonyl) sulfilimines can be oxidized to the corresponding sulfoximes in high yields with sodium hypochlorite in an AcOEt-H2O two phase system in the presence of quaternary ammonium salts as catalysts.